|#|Title|TPB ISBN|TPB Release date|TPB page number|Collected material|
|---|---|---|---|---|---|
|1|The Name of the Game|ISBN 91-33-30546-3|June, 2007|152|The Boys #1-6|
|2|Get Some|ISBN 1-933305-68-1|March, 2008|192|The Boys #7–14|
|3|Good for the Soul|ISBN 1-933305-92-4|October, 2008|192|The Boys #15-22|
|4|We Gotta Go Now|ISBN 1-84856-298-5|July, 2009|192|The Boys #23-30|
|5|Herogasm|ISBN 1-60690-082-X|November, 2009|144|Herogasm #1–6|
|6|The Self-Preservation Society|ISBN 1-60690-125-7|March, 2010|192|The Boys #31–38|
|7|The Innocents|ISBN 1-60690-150-8|December, 2010|216|The Boys #39-47|
|8|Highland Laddie|ISBN 1-60690-207-5|April, 2011|144|Highland Laddie #1-6|
|9|The Big Ride|ISBN 1-60690-220-2|November 9, 2011|276|The Boys #48-59|
|10|Butcher, Baker, Candlestickmaker|ISBN 1-60690-264-4|March 6, 2012|144|Butcher, Baker, Candlestickmaker #1-6|
|11|Over the Hill with the Sword of a Thousand Men|ISBN 1-60690-341-1|June/July, 2012|152|The Boys #60-65|
|12|The Bloody Doors Off|ISBN 1-60690-373-X|December, 2012|170|The Boys #66-72|

Question: how many were released in march or april of any year?
Answer: 4